Answer:
4.05 × 10⁴ kPa
Step-by-step explanation:
To find the pressure in kPa we use the conversion
1 atm = 101.3 kPa
If 1 atm = 101.3 kPa
400 atm = 400 × 101.3 = 40520 kPa
Expressing it in standard form we have the final answer as
4.05 × 10⁴ kPa
Hope this helps you